Admin Network & Security I59 09.10 2020.pdf

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17
October
15
SS
eo
@
Ses
eae
aS
Ol
Leveraging
the
Sys
Admin
Brain
System
administrators
are
your front-line
soldiers:
the
eyes,
ears,
and
hands
of
the
company.
System
administrators
are
a
creative
lot,
but
that
creativity
is
often
overlooked.
personally
love
being
cre-
ative
and
coming
up
with
new
solutions
and
new
ways
to
do
things.
I’m
especially
happy
when
can
solve
an
expensive
problem
for
free
by
using
native
tools
and
utilities,
and
know
other
sys
admins
are
just
like
me.
It’s
funny
how
the
brain
of
many
organizations
is
in
their
feet
rather
than
in
their
heads.
think
this
is
the
reason
we
go
unnoticed
and
often
unrewarded
for
the innovations
we
bring
to
the
corporate
table.
|
|
|
|
System
administrators
are
too
often
thought
of
as
necessary evils
overhead,
introverted
basement
dwellers,
and
dungeon
masters.
The
fact
is,
we're
creative
people
who
deserve
a
lot
more
than
the
occasional
eye
roll
from
someone
in
management.
If
you
haven’t
experienced
the
scoffs
and
the
sneers
when
you’ve
suggested
a
solution,
then you're
very
new
to
the
job
—
or
very
lucky.
In
either
case,
prepare
yourself.
-
I've
been
a
member
of
the
proletariat
for
so
long,
I’ve
lost
my
enthusiasm
for
conquering
the
corporate
beast.
I’ve
learned
the
hard
way
that
many
companies
neither
appreciate
nor
desire
creativity
and
innovation.
They
just
want
you
to
respond
as
if
you
were
a
semi-sentient
robot
and
do
the
job
without
question
or
consider-
ation
for
alternative
approaches.
If
one
varies
from
that
box,
it’s
often
suggested
that
you
“move
on.”
feel
this
attitude
wastes
and
suppresses
a
lot
of
talent
and
innovation.
|
For
example,
in
a
16-year
stint
at
a
large
IT
services
company,
was
repeatedly
told
both
“We
can’t
purchase
tools”
and
“We
don’t
want
home-grown
solutions.”
That
was
the
dilemma
—
you
can’t
buy
tools
and
you
can’t
create
your
own.
The
only
solution
was
to
do
everything
manually,
which
admins
also
weren't
supposed
to
do.
|
that
the lower
you
are
in
the
corporate
food
chain
the
less
you
have
to
offer
the
ecosystem.
It
has
been
my
experience
that
system
administration
is
the
one
job
that
requires
quick
thinking,
thinking
outside
the
box, and
coming
up
with
a
solution
that
works
while
saving
money
as
well
as
labor.
In
many
brainstorming
sessions
have
attended,
sys
admins
have
thrown
out
ideas
to
resolve
nagging
issues
and
recurring
problems.
Not
all
of
them
were
overwhelming
success
stories,
but
many
were.
My
best
advice
for
C-level
executives
and
middle
managers
is
that
you
need
to
listen
to
your
sys
admins.
You
need
to
glean
the
solutions
that
are
a
result
of
their
experiences and
their
knowledge
bases.
You
also
need
to
realize
something
that
the
Army
has
known
for generations
—
the
stars
and
the
stripes
run
the
Army.
In
other
words,
the
|
think
the
assumption
is
|
generals
give
the
orders
and
the
enlisted
folks
carry
them
out.
In
the
same
way,
the
C-level
executives
choose
a
direction
for
the
company,
and
the
sys
admins
execute
the
orders
required
to
achieve
the
corporate
goals.
If
you
think
there’s
dissension
in
the
ranks,
you’re
right.
Try
asking
what
a sys
admin
thinks
about
a
task
or
a
goal.
Ask
a
sys
admin
how
to
resolve
a
particular
problem. Most
morale
issues
relate
to
how
much
control
and
input
someone
believes
they
hav
their
jobs,
th
11n
their
Companies.
yrour
sys
te
admins op
erate, execute,
and carry
out,
but
they
a
Iso
have
a
voice.
Leverage
~
those
sys
idmin
brains.
4
Lead
Image
©
Rajesh
Rajendran
Nair,
123RF.com
ly
|e
Ken
Hess
‘
ADMIN
Senior
Editor
wus:
em
ee
1
Dra
Features
In
Containers
and
Virtualization
Save
time
and
simplify
your
workday
with
these
useful
tools
for
real-world
this
issue,
learn
how
to
create
a
Virtual
environments
are
becoming
faster,
more
secure,
and
easier
to
set
up
and
use.
Check
out
these
tools.
Management
Information
Base
module
for
hardware
and
software.
systems
administration.
10
Implementing
MIBs
Measured
values
and
status
information
24
11
Windows
Server
Tricks
56
Dockly
This
terminal
tool
helps
you
troubleshoot
and
manage
multiple
Docker
containers.
Run
Windows
servers
more
effectively,
can
be
collected
and
retrieved,
harden them,
and
improve
their
Messages
received,
and
configurations
changed remotely
by
SNMP,
but
if
you
want
to
do
this
for
your
own
hardware
or
software,
you
need
your
own
performance.
30
Rescuezilla
Rescuezilla
makes
perfect
bit-level
copies
of
mass
media
60
VMware's
Tanzu
Tanzu
comprises
several
tools
and
Management
Information
Base
module.
services
that
make
it
easy
to
build,
run,
and
manage
a
Kubernetes
environment
18
Storage
Performance
Ceph
is
powerful
and
efficient,
but
34
Ad
Blockers
We
compare
seven
free ad-blocking
from
a
single
point
of
control.
wrong
settings
or
faulty
hardware
can
filters
and
look
at how
they
integrate
into
the
network.
cause
the
decentralized
object
store
to
stumble.
66
42
Groupware Compared
Three
popular
packages
for
simplifying
StatusBay
See
exactly
what
is
going
on
behind
the
scenes
when you
run
a
Kubernetes
command.
teamwork:
Group
Office,
EGroupware,
and
Kopano.
News
|
Find
out
about
the
latest
ploys
and
2
70
Use
these
powerful
security
tools
toys
in
the
world
of
information
to
protect
your
network
and
keep
technology.
intruders
in
the
cold.
8
News
+
Envoy
This
nimble
proxy
server
addresses
modern
container
environments,
but
does
it
outperform
its
rival
Istio,
which
has
Envoy
at
its
core?
Nextcloud
Hub
now
supports
end-to-
end
encryption
50
Calico
Secure
networking that
relies
on
open
*
Three
major
threats
to
Linux
discovered
+
Linux
Kernel
5.8
is
now
available
standards
like
the
Border
Gateway
Protocol.
+
BootHole
patched
for
CentOS
4
ADMIN
59
WWW.ADMIN-MAGAZINE.COM
CentOS
B=
zp
2S
Envoy
mediates
between
clientsand
90
Percona
Monitoring
and
Management
=.
rz
yr
FP
application.
Although
it
makes.up
f
LEAs
De
BRS
CM
URC
Rm
Cai:
Rola]
MMR
oe
ences
and
optimizes
your
databases
for
maximum
performance.
Nuts
and
Bolts
Use
these
practical
apps
to
extend,
Timely
tutorials
on
fundamental
simplify,
and
automate
routine
admin
techniques
for
systems
administrators.
tasks.
Cc
—
EOS
=}
=)
Bahuls
76
Kibana
and
Kubernetes
Set
up
an
Elastic
Stack
quickly
and
easily
with
Helm
to
visualize
84
SMART
Devices
Most
storage devices
have
SMART
capability,
but
can
it
help
you
predict
failure?
We
look
at
ways
to
take
@
OS
and
Kickstart
directories
for
each
architecture
Kubernetes
data.
advantage
of
this
built-in
monitoring
technology
with
the
smartctl utility
from
the Linux
smartmontools package.
©
System-wide
cryptographic
policy
customization
@
Problem
Supports
OpenSSL
1.1.1
and
TLS
1.3
e
nftables,
chrony,
and
updated
software
throughout
80
Cockpit
Administer
a
90
small
server
farm,
virtual
PMM2
Release
2
of
Percona
Monitoring
and
Management
for
open
source
databases
helps reign
in
inefficient
queries
and
machines,
and
the
Docker
alternative
Podman
with
just
a
web
browser.
ensure
you
are
making
the
best
use
of
the
available
hardware.
Welcome
to
CentOS
The
Community
ENTerprise
Operating
System
3
4
6
98
Welcome
Table
of
Contents
DVD
94
Performance
Dojo
We
show
you
how
to
build
a
compact,
Call
for
Papers
-
single-task
device
if
you
dare to
crack
open
an
old
laptop.
D6
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details
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